LOCATION TICKAPOO NVEstablished Series
TAXONOMIC CLASS: Clayey, smectitic, mesic, shallow Natrargidic Natridurids
TYPICAL PEDON: Tickapoo sandy loam - rangeland (Colors for dry soil unless otherwise noted.)
A1--0 to 3 inches; light gray (10YR 7/2) sandy loam, brown (10YR 5/3) moist; weak thick platy structure; soft, very friable, nonsticky, nonplastic; few very fine and fine roots; many very fine and fine, and few medium vesicular pores; 10 percent pebbles, noneffervescent in most of this horizon but slightly effervescent in spots; strongly alkaline (pH 8.5); abrupt smooth boundary. (2 to 4 inches thick)
Bt1--3 to 5 inches; light gray (10YR 7/2) sandy clay loam, yellowish brown (10YR 5/4) moist; weak fine subangular blocky structure; slightly hard, friable, sticky, plastic; common fine and very fine roots; many very fine and fine pores; common thin and few moderately thick clay films on faces of peds; moderately alkaline (pH 8.2); clear wavy boundary. (2 to 4 inches thick)
Bt2--5 to 11 inches; brown (7.5YR 5/4) sandy clay, dark brown (7.5YR 4/4) moist; moderate medium prismatic structure; slightly hard, friable, sticky, plastic; common fine and very fine, and few-medium roots; many fine and very fine tubular pores; many moderately thick clay films on faces of peds and in pores; moderately alkaline (pH 8.2); clear wavy boundary. (5 to 8 inches thick)
Bt3--11 to 17 inches; brown (7.5YR 5/4) sandy clay, dark brown (7.5YR 4/4) moist; weak medium and fine subangular blocky structure; slightly hard, friable, sticky, plastic; many fine and very fine roots; few very fine and fine pores; common thin clay films on faces of peds, coatings on sand grains and bridges between sand grains; strongly effervescent; many medium and coarse faint pinkish white (7.5YR 8/2) filaments of secondary carbonates; strongly alkaline (pH 8.5); abrupt wavy boundary. (5 to 8 inches thick)
Bqkm--17 to 22 inches; pale brown (10YR 7/3) strongly cemented very gravelly materials with thin discontinuous, indurated silica-cemented lenses, brown (10YR 5/3) moist; massive; very hard, very firm, brittle; many fine and very fine roots, matted on silica cemented lenses; many very fine and fine interstitial, and few fine and very fine tubular pores; violently effervescent; strongly alkaline (pH 8.5); clear wavy boundary. (4 to 10 inches thick)
Bqk1--22 to 44 light gray (10YR 7/2) very gravelly coarse sand with a few 1/2 to 4 inch, very hard and firm, massive lenses where silica has weakly cemented the material, brown (10YR 5/3) moist; single grained; loose; common fine and very fine roots; many fine and very fine, and few medium interstitial pores; 60 percent pebbles; strongly effervescent; strongly alkaline (pH 8.5); abrupt wavy boundary. (12 to 24 inches thick)
Bqk2--44 to 50 inches; white (10YR 8/1) very gravelly coarse sand, light gray (10YR 7/2) moist; massive; weakly cemented with silica; very hard, firm, nonsticky, nonplastic; few fine and very fine roots; few fine and very fine tubular, and few fine and very fine interstitial pores; 60 percent pebbles; violently effervescent; strongly alkaline (pH 8.5); clear wavy boundary. (5 to 13 inches thick)
3C1--50 to 60 inches; light brownish gray (10YR 6/2) very gravelly coarse sand, grayish brown (10YR 5/2) moist; single grained; loose; few fine and very fine roots; many fine and very fine, and few medium interstitial pores; 60 percent pebbles; slightly effervescent; moderately alkaline (pH 8.3); clear wavy boundary. (8 to 15 inches thick)
4Bqkm--60 to 64 inches; white (10YR 8/2) strongly cemented very gravelly materials, light gray (10YR 7/2) moist; massive; extremely hard, extremely firm; practically no roots; many very fine interstitial pores; 60 percent pebbles; violently effervescent; strongly alkaline (pH 8.5)
Type Location: Lincoln County, Nevada; 1,000 feet south and 870 feet east of the NW corner of section 9, T.45., R.54E., Mount Diablo base line and meridian.
RANGE IN CHARACTERISTICS:
Soil moisture -Usually dry during most years, mainly late spring, summer, and autumn.
Mean annual soil temperature - 52 to 55 F.
Depth to the duripan- 15 to 20 inches.
Depth to the very gravelly material ranges from 15 to 30 inches. The upper part of the solum ranges from noneffervescent to effervescent and the remainder of the profile is slightly to violently effervescent.
A1 horizon Hue: 10YR or 2.5Y,
Value of 6 or 7 dry, 4 or 5 moist.
Chroma: 2 or 3.
Structure: Weak to strong, thick to thin platy structure or is massive.
The A1 horizon contains many or common variable sized vesicular pores and has a weak or moderate gravel surface pavement.
B2t horizon: Hue 7.5YR or 10YR,
Value of 5 or 6 dry, 4 or 5 moist,
Chroma: 3 or 4.
B2t horizon containing more than 35 percent clay.
Rock fragment: 5 to 35 percent
Structure: Weak or moderate, fine to coarse prismatic, and angular or subangular blocky.
Segregated lime: Is common in the lower part of the B horizon.
SAR: 15 to 30 percent in at least some subhorizon of the argillic horizon.
Rock fragment; 35 to 75 percent pebbles.
The upper part of the C horizon contains few to common, very thin to thin (less than 1/4 inch) silica cemented discontinuous, randomly oriented laminae. Lenses range from extremely hard to hard, very firm or firm and are brittle.
Competing Series and their Differentiae: These are the Belted, Monte Cristo, Silent, Silverbow, Tenabo and Timpahute series. Belted and Monte Cristo soils have sandy clay loam or clay loam B2t horizons. Silent soils have sandy clay loam or clay loam B2t horizons and indurated duripans. Silverbow soils have very stony clay loam B2t horizons containing 50 to 80 percent rock fragments. Tenabo soils have loamy control sections and have indurated duripans. Timpahute soils have strong prismatic B2t horizons and montmorillonitic mineralogy.
Setting: Tickapoo soils are on smooth or slightly convex, nearly level to strongly sloping alluvial fans at elevations of 4,800 to 5,500 feet. Slope gradients are O to 15 percent. Small, 3 to 7 inch high, wind deposited sandy hummocks occur around the base of shrubs. These soils formed in mixed loamy alluvium derived mainly from ignimbrite. The climate is cool semiarid with a mean annual precipitation of 6 to 8 inches. The average January temperature is 35 F., July 71 F., the mean annual temperature is 49 to 52F. and the frost-free period is 100 to 150 days.
Principal Associated Soils: These are the Koyen, Leo, and Papoose soils. Koyen soils have cambic horizons and coarse-loamy control sections. Leo soils have sandy-skeletal control sections. Papoose soils have sandy clay loam or clay loam B2t horizons and lack silica cementation.
Drainage and Permeability: Well-drained. Very slow or slow runoff on the nearly level slopes and medium runoff on the strongly sloping slopes; slow permeability.
Use and Vegetation: Used for livestock grazing. The dominant vegetation is galleta, bud sagebrush, Nevada ephedra, shadscale, winterfat, Indian ricegrass, spiny hopsage, Anderson wolfberry, and littleleaf horsebrush.
Distribution and Extent: Central Nevada, where the soil is moderately extensive.
Series Established: Lander County, Northern Part, Nevada, 1974.
Remarks: These soils were formerly classified as Desert soils.
OSED scanned by NSSQA. Last revised by state on 2/74.